Cheap flights from London to Cancún from C$ 490

In general, February is the cheapest month to fly from London to Cancún. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 982. The month of September is another great option to travel to Cancún, with average flight prices from London averaging around C$ 1,061.

The cheapest day to depart from London to Cancún is on a Friday. Travellers who choose to depart for Cancún on a Friday will often find tickets for as low as C$ 1,038. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around C$ 1,404. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

Our data shows that the cheapest London to Cancún flights are usually those with departure times in the morning. Our users have found flights to Cancún in the morning for as low as C$ 1,015. Flights to Cancún are more costly at noon, with an average ticket price of C$ 1,437. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from London Heathrow to Cancun for the best London - Cancun flight prices

You are more likely to see cheaper flights to Cancún from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around C$ 1,290 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from London for as low as C$ 930 on momondo.

There are 2 cabin classes available to choose from on London to Cancún flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 22% on your flight if you consider stops on a London to Cancún flight.

As of July 2026, prices for London to Cancún flights are approximately 8% more expensive when compared to flights at the same time last year.

Historically, on average around 18% of flights between London and Cancún have experienced a delay on any given week. The average delay length over the past 12 months has been 134 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Wednesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, Virgin Atlantic has had the least delays on this route over the last 12 months, with about 10% of their flights experiencing any sort of delay.